* Honda received a deduction of 80 manufacturer championship points for engines that did not attain their life cycle during the GoPro Grand Prix of Sonoma race weekend. According to Rule 10.6.4.3, 20, manufacturer points are deducted for an engine that fails to reach its 2,500-mile life cycle. The Honda engine on the No. 15 Rahal Letterman Lanigan Racing, No. 26 Andretti Autosport and 41 A.J. Foyt Enterprises entries did not reach its life cycle minimum before being changed out. In addition, Honda received an additional 20 point deduction for fitting the wrong engine in the No. 41 entry.

Following the deduction, Chevrolet won the manufacturer championship with 1,645 points; Honda finished with 1,179 points.

Members may contest the imposition of penalties pursuant to the procedures and timelines details in the review and appeal procedures of the Verizon IndyCar Series rulebook.